Comment 203 for bug 204996

I'm experiencing this bug too. I have Dell D400 laptop with Intel graphics, audio and wireless. Mostly it happens when browsing the web with FF3 (what is actually 80% of the time). The last time it happened was while scrolling down the Slashdot page.

Another thing which might not be in direct connection with the lockups. When watching Flash videos I experience stuttering about every minute (but not only with Flash). I noticed that at that time the Xorg process jumps to 2 or 3%. Also, touchpad scrolling breaks down after a couple of these stutters.

Finally, when shutting down the laptop, it freezes too. This occurs very often. I also can't use hibernation anymore because of this.

In Gutsy everything worked flawlessly (only bluetooth module after a couple of wakeups from hibernation couldn't wake up too).

I'm attaching my dmesg.